Page 42 - SP015 Past Years PSPM Chapter 1 -5 Ver.2020
P. 42
PHYSICS PSPM SEM 1 1999 - 2017
UPS 2015/2016 SF016 No. 3(b)(ii)
39.
F = 90 N
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35
FIGURE 4.28
FIGURE 4.28 shows a 7 kg block pulled by a force of 90 N. If the coefficient of kinetic
friction of the plane is 0.4, what is the acceleration of the block? [4 m]
PSPM 2017/2018 SF016/2 No. 3(c)
40. 5.0 kg
9.0 kg
FIGURE 4.29
FIGURE 4.29 shows a 5.0 kg box placed on a frictionless horizontal table, is connected
to a 9.0 kg hanging box by a string that passes over a pulley.
(a) Draw free-body diagrams of both boxes. [2 m]
(b) Determine the magnitude of the acceleration of both boxes. [4 m]
(c) Determine the magnitude of the tension in the string. [1 m]
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